Stereoselective Electro-2-deoxyglycosylation from Glycals

Area of Science:

• Carbohydrate Chemistry
• Organic Synthesis
• Electrochemistry

Background:

• Glycosylation is crucial for synthesizing biologically active molecules.
• Developing stereoselective and efficient glycosylation methods remains a challenge.
• Electrochemical methods offer a green and versatile approach to glycosylation.

Purpose of the Study:

• To develop a novel and highly stereoselective electro-2-deoxyglycosylation method.
• To demonstrate the broad applicability and functional group tolerance of the new method.
• To achieve scalable synthesis of complex glycosylated natural products and drugs.

Main Methods:

• Electroglycosylation of glycals using a novel electrochemical approach.
• Optimization of reaction conditions for stereoselectivity and yield.
• Application of the method to the synthesis of natural product derivatives and oligosaccharides.

Main Results:

• Achieved highly stereoselective electro-2-deoxyglycosylation from glycals.
• Demonstrated excellent scope and functional group tolerance.
• Successfully applied the method to the modification of natural products and drugs.
• Reported a scalable synthesis of glycosylated podophyllotoxin.
• Developed a one-pot trisaccharide synthesis via iterative electroglycosylations.

Conclusions:

• The developed electro-2-deoxyglycosylation is a powerful and versatile tool for carbohydrate synthesis.
• This method provides efficient access to complex glycosylated compounds, including natural products and drugs.
• The scalability and iterative nature of the process open new avenues for complex carbohydrate assembly.